I published my speculative flags of the Légion Britannique some time ago and a few people have used them and posted pictures. The latest posting of these troops with my flags here: http://www.jemimafawr.co.uk/2023/09/12/hannover-siegt-der-franzmann-liegt-my-15mm-syw-hanoverian-german-allied-army-part-5-legion-britannique/ points out that the regimental flag of the third battalion should be orange. I had misread the rather deceptive plate I had used for the battalion and saw the uniform facings as red, not orange. So this is the corrected flag in glorious technicolour orange at last:
I shall eventually revise the whole sheet and add this flag to it but for now this supplementary sheet will have to do.